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相关论文: Outflow - Core Interaction in Barnard 1

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Variable accretion has been well studied in evolved stages of low-mass stars formation. However, the accretion history in the initial phases of star formation is still a seldom studied topic. The outflows and jets emerging from protostellar…

太阳与恒星天体物理 · 物理学 2023-12-21 Veronica Lora , Thomas Nony , Alejandro Esquivel , Roberto Galván-Madrid

Shock chemistry is an excellent tool to shed light on the formation and destruction mechanisms of complex organic molecules (COMs). The L1157-mm outflow is the only low-mass protostellar outflow that has extensively been studied in this…

We report the arcsecond resolution SMA observations of the $^{12}$CO (2-1) transition in the massive cluster forming region G10.6-0.4. In these observations, the high velocity $^{12}$CO emission is resolved into individual outflow systems,…

太阳与恒星天体物理 · 物理学 2015-05-20 Hauyu Baobab Liu , Paul T. P. Ho , Qizhou Zhang

Previous far-infrared observations at low-angular resolution have reported the presence of water associated with low-velocity outflow shocks and protostellar envelopes. The outflow driven by the intermediate-mass class 0 protostar Cep E is…

星系天体物理 · 物理学 2015-05-27 B. Lefloch , J. Cernicharo , S. Pacheco , C. Ceccarelli

We present a catalog of 315 protostellar outflow candidates detected in SiO J=5-4 in the ALMA-IMF Large Program, observed with ~2000 au spatial resolution, 0.339 km/s velocity resolution, and 2-12 mJy/beam (0.18-0.8 K) sensitivity. We find…

We have surveyed 84 Class 0, Class I, and flat-spectrum protostars in mid-infrared [Si II], [Fe II] and [S I] line emission, and 11 of these in far-infrared [O I] emission. We use the results to derive their mass outflow rates. Thereby we…

We present Submillimeter Array observations toward the 10^{4.7} Lsun star-forming region G240.31+0.07, in the J=2-1 transition of 12CO and 13CO and at 1.3 mm continuum, as well as the 12CO and 13CO observations from the Caltech…

星系天体物理 · 物理学 2011-02-11 Keping Qiu , Qizhou Zhang , Jingwen Wu , Huei-Ru Chen

We have made continuum and spectral line observations of several outflow sources in the Mon OB1 dark cloud (NGC 2264) using the Heinrich Hertz Telescope (HHT) and ARO 12m millimeter-wave telescope. This study explores the kinematics and…

天体物理学 · 物理学 2009-11-11 Abigail S. Hedden , Christopher K. Walker , Christopher E. Groppi , Harold M. Butner

We present a large scale survey of CO outflows in the Gem OB1 molecular cloud complex and its surroundings using the Purple Mountain Observatory Delingha 13.7 m telescope. A total of 198 outflow candidates were identified over a large area…

星系天体物理 · 物理学 2018-03-21 Yingjie Li , Fa-Cheng Li , Ye Xu , Chen Wang , Xin-Yu Du , Wenjin Yang , Ji Yang

During the early stages of star formation, accretion processes such as infall from the envelope and molecular streamers, and ejection of matter through winds and jets take place simultaneously. The Class 0/I binary [BHB2007] 11 shows…

We identify a molecular bubble, and study the star formation and its feedback in the S Mon region, using multiple molecular lines, young stellar objects (YSOs), and infrared data. We revisit the distance to S Mon, ~722+/-9 pc, using Gaia…

Aims: Our goal is to set constraints on the evolutionary state of the dense core Cha-MMS1 in the Chamaeleon I molecular cloud. Methods: We analyze molecular line observations carried out with the new submillimeter telescope APEX. We look…

天体物理学 · 物理学 2009-11-11 A. Belloche , B. Parise , F. F. S. van der Tak , P. Schilke , S. Leurini , R. Guesten , L. -A. Nyman

We present a series of numerical studies of the interaction of colliding radiative, hydrodynamic young stellar outflows. We study the effect of the collision impact parameter on the acceleration of ambient material and the degree to which…

天体物理学 · 物理学 2008-11-26 Andrew J. Cunningham , Adam Frank , Eric G. Blackman

Context: Jets and outflows are key ingredients in the formation of stars across the mass spectrum. In clustered regions, understanding powering sources and outflow components poses a significant problem. Aims: To understand the dynamics in…

太阳与恒星天体物理 · 物理学 2015-02-25 P. D. Klaassen , K. G. Johnston , S. Leurini , L. A. Zapata

In this paper, we perform an analysis of 13 outflows in the Cygnus X star-forming region. We use the James Clerk Maxwell Telescope observations of $^{13}$CO(3-2) and C$^{18}$O(3-2) molecular emission lines combined with archival…

星系天体物理 · 物理学 2021-04-26 Soumen Deb , Roland Kothes , Erik Rosolowsky

Context. This is the third of a series of papers devoted to study in detail and with high-angular resolution intermediate-mass molecular outflows and their powering sources. Aims. The aim of this paper is to study the intermediate-mass YSO…

天体物理学 · 物理学 2009-11-13 M. T. Beltran , R. Estalella , J. M. Girart , P. T. P. Ho , G. Anglada

Extremely high velocity emission likely related to jets is known to occur in some proto-Planetary Nebulae. However, the molecular complexity of this kinematic component is largely unknown. We observed the known extreme outflow from the…

We review the known properties of molecular outflows from low- and high-mass young stars. General trends among outflows are identified, and the most recent studies on the morphology, kinematics, energetics, and evolution of molecular…

We present new near-IR H2, CO J=2-1, and CO J = 3-2 observations to study outflows in the massive star forming region IRAS 05358+3543. The Canada-France-Hawaii Telescope H2 images and James Clerk Maxwell Telescope CO data cubes of the IRAS…

星系天体物理 · 物理学 2013-09-26 Adam G. Ginsburg , John Bally , Chi-Hung Yan , Jonathan P. Williams

(abridged) We study a previously discovered protostellar source that is deeply embedded and drives an energetic molecular outflow. The source, UYSO1, is located close to IRAS 07029-1215 at a distance of ~1 kpc. The multi-wavelength…